From e68b9d00a6e05b3a941f63ffb696f91e554ac5ec Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel@debian.org>
Date: Fri, 18 Oct 2024 20:33:49 +0200
Subject: Adding upstream version 9.0.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>
---
 modules/packages/vagrant/metadata.go | 96 ++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 modules/packages/vagrant/metadata.go

(limited to 'modules/packages/vagrant/metadata.go')

diff --git a/modules/packages/vagrant/metadata.go b/modules/packages/vagrant/metadata.go
new file mode 100644
index 0000000..6789533
--- /dev/null
+++ b/modules/packages/vagrant/metadata.go
@@ -0,0 +1,96 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package vagrant
+
+import (
+	"archive/tar"
+	"compress/gzip"
+	"io"
+	"strings"
+
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/validation"
+)
+
+const (
+	PropertyProvider = "vagrant.provider"
+)
+
+// Metadata represents the metadata of a Vagrant package
+type Metadata struct {
+	Author        string `json:"author,omitempty"`
+	Description   string `json:"description,omitempty"`
+	ProjectURL    string `json:"project_url,omitempty"`
+	RepositoryURL string `json:"repository_url,omitempty"`
+}
+
+// ParseMetadataFromBox parses the metadata of a box file
+func ParseMetadataFromBox(r io.Reader) (*Metadata, error) {
+	gzr, err := gzip.NewReader(r)
+	if err != nil {
+		return nil, err
+	}
+	defer gzr.Close()
+
+	tr := tar.NewReader(gzr)
+	for {
+		hd, err := tr.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return nil, err
+		}
+
+		if hd.Typeflag != tar.TypeReg {
+			continue
+		}
+
+		if hd.Name == "info.json" {
+			return ParseInfoFile(tr)
+		}
+	}
+
+	return &Metadata{}, nil
+}
+
+// ParseInfoFile parses a info.json file to retrieve the metadata of a Vagrant package
+func ParseInfoFile(r io.Reader) (*Metadata, error) {
+	var values map[string]string
+	if err := json.NewDecoder(r).Decode(&values); err != nil {
+		return nil, err
+	}
+
+	m := &Metadata{}
+
+	// There is no defined format for this file, just try the common keys
+	for k, v := range values {
+		switch strings.ToLower(k) {
+		case "description":
+			fallthrough
+		case "short_description":
+			m.Description = v
+		case "website":
+			fallthrough
+		case "homepage":
+			fallthrough
+		case "url":
+			if validation.IsValidURL(v) {
+				m.ProjectURL = v
+			}
+		case "repository":
+			fallthrough
+		case "source":
+			if validation.IsValidURL(v) {
+				m.RepositoryURL = v
+			}
+		case "author":
+			fallthrough
+		case "authors":
+			m.Author = v
+		}
+	}
+
+	return m, nil
+}
-- 
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